My website is hosted by Seanic.net and of course I have several email accounts via this site. I have recently been receving so many "daemon mailer" messages about rejected emails that I have not sent to recipients that I do not know that I had to temporarily suspend one of my email accounts....

If a person creates both yahoo and Gmail email accounts and sends messages from an iPhone, will the IP addresses match? I'm sure they are from the same person! Moderator Note: This is a revised repost. --------------------------------------------------------------------------- Strings...

Looking for a spam firewall. We previously used SonicWall but looking at other options. Can anyone recommend alternatives? I'm looking for something hardware based for around 200 employees but scalable. Looking to spend under $4k.

Many of my users are receiving junk mails with fake mail IDs with SMTP address of our Exchange servers. Now everyone is thinking that our mail server is infected. But I know this can be done, but can someone tell me how to stop this?

A question submitted on SearchExchange.com It appears a PC on our network has a virus. This morning I found a few hundred messages in the SMTP queues being sent from security@eppi-card.com and security@eppi-card.co.us to hundreds of domains. Is there a way to see which PC sent these messages? Maybe...

These spams send email from user mail to him (spam himself) So the user receive message say Not I have kaspersky anti spam with last update and kasperky anti-viruses last update Delivery Failure Report was not delivered to: xxx@mydomainname.xx because: Host 127.0.0.1[127.0.0.1] said: 550 5.7.1...

On our Exchange Server, we're getting hammered with thousands of spam messages per day (as well as legitimate messages too). We've noticed that about 75% of the spam is directory harvesting and we have GFI MailEssentials installed. It's doing a fairly decent job. But with so much spam coming in,...

I am having problems with someone spoofing emails from my server for spam. What happens is that I start getting reject and bounce notices in the mqueue and it is bringing my server to it's knees (I just upgraded to a faster server also). For example, yesterday in a matter of seconds the mqueue went...

How do spammers send e-mails that appear as if they came from a big company and more importantly, are there techniques to detect which messages are soam and which are real? Are the emails being sent from a spammers server or do they hijack the company's mail servers. Is it possible for someone to...

I'm getting delivery failures for email I didn't send. It's probabaly someone spoofing my account, but could it be a trojan sending emails directly via SMTP? How can I tell? Is there a way to query the SMTP service for a list of sent emails?

Good day, We are using Windows 2000 Small Business Server in our organization with Exchange, DNS and ISA server configured. 1. I want to monitor the internet usage by the users. 2. I want to take a report on monthly or daily basis how much MB/GB utilized by each user. Thanks for your reply in...

Often times many consumers get these e-mails from Nigeria, Russia, China and so on purporting a long drawn out story about a deceased king and so on. They can be caught by looking at their headers, but I've been told sometimes they use fake e-mail addresses. Is their a fool proof way to identify...

Hi everyone, One of our users keeps getting undeliverable email messages. It looks like someone out there is sending mail and making it look like it is coming from him. Is there anyway to stop this? We are running Exchange 2007. I don't think it is relaying or a virus. It does this even when his PC...

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